Hello! I received an eleaf Istick as a gift about a week ago, and it worked great for about 3 or 4 days. After those couple of days, some tanks/rda's wouldn't work on it. It would say "atomizer short" I thought it was just my rda/tanks not working so i thought no biggie. Then tonight arrives.. Absolutely nothing works on it. Even with no atomizer on it, it still says it's shorting out. When it's supposed to say "no atomizer" I don't know what's wrong with it. I haven't tampered with it, or anything. Any ideas?